and senator roger wicker. eamon javers has the latest on the ricin scare. >> reporter: we've had a flurry of suspicious package incidents in washington here today. earlier today, the hallway right behind me here in the russell senate office building was actually closed off and a bomb squad moved in to investigate a suspicious package that was there. also, staffers received an e-mail alert, not to go anywhere near the third floor of the hart senate office earlier today because of a suspicious package incident over there. some members of congress reporting suspicious letters, including senator carl levin, who said that a letter was delivered to his saginaw, michigan, office. he said in a statement a minute ago that a staffer there has been sent to the hospital on a precautionary basis. that staffer hasn't developed any symptoms of ricin poisoning. and then, of course, over at the white house today, they said they had a suspicious package incident of their own as well. here's press secretary jay carney earlier to